The public is invited to participate in the fourth annual Lavaca River clean-up on Saturday, March 28 in downtown Hallettsville.Volunteers will meet at a.m. at Hallet Oak Gallery for check-in, a safety briefing by Chad Kinsfather, director of environmental services for the Lavaca-Navidad RiverAuthority, and distribution of supplies before dividing into teams.The clean-up will begi...